Hi there,Info: Relatively high-end system running ASA (sp1,433) in FS9 with FSUIPC weather settings off. REX cloud textures (not that I guess it matters). ASA visibility settings are: Fog Layer Generation, Disable Haze Layer and Enable Visibility Graduation Smoothing all set to ON. Min vis is 0SM, max surface is 60SM and max upper is 110SM. (FS has max cloud coverage, 3d at 100% and max vis set to 120)I have two problems with the way that I am seeing fog depicted and wonder if I should be changing some settings to get a better result... The current weather in Glasgow is foggy, vis is less than 1nm up to about 2000ft. So I start up FS and ASA and wait for everything to load etc. On the ground, I see the right low vis as I see right now out of my window... all good so far. However, if I now climb to 3000ft I have a problem. After a while, I am out of the fog and the visibility is up to 20 miles but if I look down I see the ground! Should I not be seeing this "Generated" fog layer now!? I see patchy low cloud but not the endless blanket that should be there. So the main question would be, how do I make that fog layer have more coverage so that I can't see through it?Then, after I descend back into where there should be fog, the visibility smoothing takes a really long time before the visibility is reduced again... Is there a way to change the rate of visibility change - the FSUIPC setting perhaps?Screenshots available if they would help clarifying what I am asking. Thanks for any answers!Geoff

The current weather in Glasgow is foggy, vis is less than 1nm up to about 2000ft. So I start up FS and ASA and wait for everything to load etc. On the ground, I see the right low vis as I see right now out of my window... all good so far. However, if I now climb to 3000ft I have a problem. After a while, I am out of the fog and the visibility is up to 20 miles but if I look down I see the ground! Should I not be seeing this "Generated" fog layer now!? I see patchy low cloud but not the endless blanket that should be there. So the main question would be, how do I make that fog layer have more coverage so that I can't see through it?

Hate to be the pessimist, but I recall what you're asking is something that can't be achieved in FS.I just read the technical part in another topic but can't remember where. Low visibility layer just can't be depicted from above and there is no addon that can cure it. Please correct me if I'm wrong.

Hate to be the pessimist, but I recall what you're asking is something that can't be achieved in FS.I just read the technical part in another topic but can't remember where. Low visibility layer just can't be depicted from above and there is no addon that can cure it. Please correct me if I'm wrong.

If this is true, then can somebody tell me what the "Generate Fog Layer" is supposed to do? I had thought that it would be possible, when fog is present, to generate a layer of thin cloud at just above ground level to give the appearance of fog from above... after all, there are 20 layers available for ASA to use...Geoff

Hi,For fog the FG code must be in the METAR. So please check the ASA data for that.If it is low visibility, then yes, this will disappear once above a certain altitude in FS.Thanks,

I find that the most annoying part is the speed at which the low vis returns when landing.Sometimes it takes so long that you actually manage to land and be on the ground before it starts fogging in.Jim and the team have tried to fix this I believe, but maybe this is again one of the limitations of FS9 (although I am sure I ran some test using standard FS Wx in similar circumstances, and it didn't have this problem).ASA is a hugely complex piece of software, so maybe the way it interacts introduces other problems.I still love it though!Neil

For fog the FG code must be in the METAR. So please check the ASA data for that.If it is low visibility, then yes, this will disappear once above a certain altitude in FS.

Ahaa, right. That I didn't check... I would have thought FG should be there because it was very foggy yesterday... but perhaps it was not explicitally in the METAR.

I find that the most annoying part is the speed at which the low vis returns when landing.Sometimes it takes so long that you actually manage to land and be on the ground before it starts fogging in.

I see... it would be nice to have faster transition for visibility because as you say, it can sometimes take longer than the final approach for the visibility to drop correctly. FSUIPC graduated vis has the upper limit of 10% every 2 seconds and I believe that is faster than ASA is doing it..? How about an option in ASA to have visibility enforced without smoothing and let FSUIPC deal with it?Cheers,Geoff

I'm starting to think some weather phenomena would be easier to depict in FS by changing the window textures. Ha! :(

Ahaa, right. That I didn't check... I would have thought FG should be there because it was very foggy yesterday... but perhaps it was not explicitally in the METAR.

Actually, I have checked just now on my lunch break and there was FG in the metar yesterday so is there a problem with the fog layer generation?A question to the developers: Why is the visibility problem not addressed by simply adding a layer of hazy cloud at just above ground level or the level below which the visibility is low? This way you wouldn't be able to see the ground when the ground visibility was lower than a certain value? Cheers,Geoff

I'm starting to think some weather phenomena would be easier to depict in FS by changing the window textures. Ha! :(

Actually, that would be a very good idea if it is possible... something like the sun glare effect that you get when you look towards the sun in FS9...Geoff

Actually, that would be a very good idea if it is possible... something like the sun glare effect that you get when you look towards the sun in FS9...

Well, the windows can be made to gradually display fogging, freezing and precipitation (look at the Lotussim L-39), so why not!Then again, the rate of change required would probably be too quick and 3D effects hard to implement... but an interesting idea.

Geoff,Was FG at the nearest station?What are your ASA visibility options set to?Right now we just can't take the visibility data and tell FS to draw a cloud layer. This is a situation that has been with us since FS04 was released and we have spent many hours looking into this.Thanks,

Geoff,Was FG at the nearest station?What are your ASA visibility options set to?Right now we just can't take the visibility data and tell FS to draw a cloud layer. This is a situation that has been with us since FS04 was released and we have spent many hours looking into this.Thanks,

Yes, FG was in the report for EGPF and I was directly above the airport. My first post in this thread has the visibility settings etc.Actually, while flying yesterday in Finland, the low layer of fog over Helsinki into which I landed was depicted perfectly... so I suppose there was something wrong with Glasgow the other day or perhaps it just doesn't always work...Anyway, thanks for the product and for the support!Geoff